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IMAGE 68211
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Helicorder record showing a swarm of primarily volcano-tectonic earthquakes at Little Sitkin volcano on August 30, 2012. Of the more than 60 locatable events during this swarm, most occurred between 4 and 10 km (2.5 and 6.2 mi) depth below sea level. Epicenters clustered in the northwestern quadrant of the island. tac14-5218_

Date: August 30, 2012 12:00 AM
Volcano(es):Little Sitkin
Photographer/Creator: Neal, C. A.

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Image courtesy of AVO/USGS.
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